We have a set of custom data for memberships. One field is 'radio' type for newsletter delivery preference: online, paper, both, none. We can filter on this custom field in membership reports no problem, but cannot add it as a column in the report. I suspect this is an area related to custom report programming, and I'm not at all sure how to go about this. When I search on "custom field report column" I get a few hits in the forum that are a bit cryptic to me.
Update: To fix this all I had to do was upgrade to 4.6.2.